GB646832A - Treatment of cellulose esters and ethers with naphthopyridine derivatives to inhibit gas fading - Google Patents

Treatment of cellulose esters and ethers with naphthopyridine derivatives to inhibit gas fading

Info

Publication number
GB646832A
GB646832A GB21428/48A GB2142848A GB646832A GB 646832 A GB646832 A GB 646832A GB 21428/48 A GB21428/48 A GB 21428/48A GB 2142848 A GB2142848 A GB 2142848A GB 646832 A GB646832 A GB 646832A
Authority
GB
United Kingdom
Prior art keywords
naphthopyridine
cyano
hydroxytetrahydro
nitro
bromo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21428/48A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Aniline and Film Corp filed Critical General Aniline and Film Corp
Publication of GB646832A publication Critical patent/GB646832A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642—Compounds containing nitrogen
    • D06P1/6426—Heterocyclic compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

Naphthopyridines having the general formula <FORM:0646832/IV (b)/1> or <FORM:0646832/IV (b)/2> wherein X and Y are hydrogen, alkyl, halogen, nitro or cyano, are prepared by reacting 1- or 2-naphthylamine which may be substituted with X and Y, with epichlorhydrin in solution in butyl, amyl or a higher alcohol at the reflux temperature. The following naphthopyridines are specified, viz, 3-hydroxytetrahydro-5-6-naphthopyridine substituted by 8-iodo-, 12-iodo-, 8-chloro-, 11-chloro-, 12-chloro-, 8,12-dichloro-, 8-bromo-, 9-bromo-, 12-bromo-, 10-ethyl-, 8-cyano-, 9-cyano-, 12-cyano-, 8-nitro-, 12-nitro-, or 8,9-dinitrogroups; 5-hydroxytetrahydro-2,3-naphtho-pyridine substituted by 9,12-dichloro-, 8-bromo-, 8-methyl-, 10-ethyl-, 11-cyano- or 9-nitro-groups; and the corresponding unsubstituted compounds.ALSO:The resistance of dyeings on cellulose ester or ether fibres to acid fading is enhanced by applying before, during or after dyeing, an aqueous dispersion of a naphthopyridine free from groups inducing solubility in water and having the formula <FORM:0646832/IV (c)/1> or <FORM:0646832/IV (c)/2> wherein X and Y are hydrogen, alkyl, halogen, nitro or cyano. Many such compounds are specified. In an example, cellulose acetate silk is dyed in an aqueous dispersion of 3-hydroxytetrahydro - 5,6 - naphthopyridine and 1-methylamino - 4 - ethylamino anthraquinone. In a second example, the procedure is as above but 3-hydroxytetrahydro-8-chloro-5,6-naphthopyridine is used as the anti-acid fader. Another example is given in which cellulose acetate silk which has been dyed with 1,4-di-(monomethylamino)-anthraquinone is treated with an aqueous dispersion of 5-hydroxytetrahydro-2,3-naphthopyridine. The process is particularly useful with aminoanthraquinone dyes and certain azo dyes, several of which are specified.
GB21428/48A 1947-10-18 1948-08-13 Treatment of cellulose esters and ethers with naphthopyridine derivatives to inhibit gas fading Expired GB646832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US646832XA 1947-10-18 1947-10-18

Publications (1)

Publication Number Publication Date
GB646832A true GB646832A (en) 1950-11-29

Family

ID=22057608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21428/48A Expired GB646832A (en) 1947-10-18 1948-08-13 Treatment of cellulose esters and ethers with naphthopyridine derivatives to inhibit gas fading

Country Status (1)

Country Link
GB (1) GB646832A (en)

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